VoxReason: Auditing Source-Grounded Speech Plans Before Synthesis
Plan accuracy alone cannot show whether a speech-delivery decision follows its source: a fixed prior may match the original label yet fail to respond appropriately when a cue changes. VoxReason provides a 100-case verifier benchmark that holds each utterance fixed, edits one designated source-label cue, and scores cited evidence, eight plan fields, and the permitted response. On a source-key-disjoint test of 24 cases, a source-emotion prior reaches plan-slot accuracy 0.958, but none of the 24 edited neutral targets appears in its training labels; its required-change accuracy is 0.000. This diagnoses the support boundary of this prior, not its performance on supported edits. In a complemen...
| Authors | Mengzhe Geng |
|---|---|
| Primary category | cs.SD |
| Published | 2 September 2026 |
| Last updated at source | 6 October 2026 |
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